# Rahul Narain

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bio website location age 28 member for 3 years, 4 months seen 10 hours ago profile views 3,928

Almost all of the questions on the front page these days are homework questions or textbook exercises. I think I'll be spending a lot less time here.

# 492 Revisions

 Jun21 revised a property of log determinant formatted math Jun21 revised What's the minimum of $\int_0^1 f(x)^2 \: dx$, subject to $\int_0^1 f(x) \: dx = 0, \int_0^1 x f(x) \: dx = 1$? mixed up the notation for the functional and the integrand Jun20 revised Solving an exponential equation disambiguated math thanks to Jonas' comment Jun19 revised converging to cosine by iteration added link to previous question Jun17 revised Evaluating $\lim_{x\to \infty}\sqrt[6]{x^{6}+x^{5}}-\sqrt[6]{x^{6}-x^{5}}$ added some non-tex to title Jun17 revised What is the mathematical principle that describes a series of dots on concentric circles that form a spiral pattern? undeleted Jun16 revised Dijkstra's algorithm proof Retagged. [contradiction] is not a very useful tag, IMHO. May17 revised calculate location on an isometric world map added image from StackOverflow question May7 revised On the probability that two positive integers are relatively prime linkified May2 revised Why does the formula for calculating a reflection vector work? fixed minor typos Apr14 revised Describing Bayesian Probability improved formatting Apr6 revised Polar coordinates questions rolled back to a previous revision Apr6 revised Graph terminology: vertex, node, edge, arc added 1 characters in body; edited tags Mar24 revised Absolute values of 1-10 in a pyramid form fixed formatting of pyramid Mar18 revised Sketch a curve given parametrically by $x=2t-4t^3$ and $t^2-3t^4$ added 1 characters in body Mar15 revised Equation of the complex locus: $|z-1|=2|z +1|$ added 9 characters in body Mar15 revised What is an intuitive explanation for $\operatorname{div} \operatorname{curl} F = 0$? rewritten completely Mar14 revised What is an intuitive explanation for $\operatorname{div} \operatorname{curl} F = 0$? edited body Mar14 revised What is an intuitive explanation for $\operatorname{div} \operatorname{curl} F = 0$? added 278 characters in body Feb6 revised What is the current status of Vinay Deolalikar's proof that P is not equal to NP edited tags